Flat color cathode ray tube



Deco 28, 1965 H KASPERowlcz 3,226,596

LAT COLOR cATHoDE= RAY UBE Fi1ed June 21, 1963 4 Sheet$Sheet 1 Dec. 28, 1965 KASPERowICZ FLAT coLOR CATHODB RAY UBE 4 sheetssheet 2 F11ed June 21 1963 Dec. 28, H. KASPERowlcz 3,226,596

FLAT coLOR cATHODB RAY TUBB Fi1ed June 21, 1963 4 SheetSSheet 4:

United States atent ThiS invention felateS in generaf to a (athode 1ay fbe for diS Iying video inageS and iS paTticu]arly directed to the at type ColoT cathode Tay tube fol diSplaying colo r of n1onochTono iInages.

In geneTal cathode Tay tUbeS and pafticulaTy those of tho color type aTe geneTally arTanged to have thei taTget SurfaceS conSfrucfed With phoSPhor paffeTnS arTanged to Teceive electron bean1S at sI1bStantially high vefociteS and to produco color imageS theTefroIn cofreSpondng to color infoffnation tranSInitfed fTon1 -1 fen1ofe of roxInate tfanS- Initting Sfaton. (2oloT tobeS of the ffat vafiety, aS a vevV ing device, have ceftain and defnife advantageS bofl1 eco no1ic and technica] that nake it Snperior to those typeS of the so-caHed Conventional glasS bolb type Such as those con1IT1only deSignafed as the Shadow InaSk color tobe and the Lavrence Coor tUbe. The shadoXv IIlaSk tubeS lack bTighfneSS and theTe are ioherent dicUlfeS in main tainiIg convergence and colol 1*egistfy becaLlSe of the natnre in which theSe tube types function and operate.

The La rence of chTonlatfon tUbe in particolaT Uses vhat is tern1ed a poSf deHection internal Svtching gTid to pTodoce itS cofo1 iInages, BaSicany the gfid is con1posed of a SefioS of paraHel veTfical vTeS lying in 21 cylindfCa1 pIane. The grfdS in aTfico1af being tvo SeParate infef leaved eloctrodoS to hiCh the Sfvitching voIfagES afe applied. Patent No. Z,69Zj3Z ShoWs in SoIne detail the detaifS and princfples of opeTation of thiS paTticulaT gfid and tobe Stfocfufe. The qoality of coloT TegiSry, aS ,iI1 be ap aTent to thoSe Skilled in the efectfoI1-o tic aTt, that this tUbe fype Wi11 be capable of, vi11 entirofy de end npon a denite geon1et ric To1atonShip betWeen the interna1 SI1fface of the phoSphof face panel of the tube and tho cuTvatHfe of the cylindfical gfid- Il Tealify the conT Inefciaf televiSion tobe bolbS from vhich the tobe is con StTllcted, aTe not avalab1e, o aTe they nlanufactUTed ifh the noceSSary tofoidal StllfaCe Tequired fo afCh tho cylin- (friCal sVifChng grid and accordingy Special tlbe bolbS have to bo nlanUfoctnfed of n1olded to conforIn to the S )ecia1 congUTaton of the SWitching grids. The Special nlofdod toroidal blllbS are refafively oxponSivo conlpared fo the tllbe SBTfaceS ConInerciany avilab1o, So that the econon1icS of rodocing the S ecial bI11bs become prohibitlvo and therefore they are nonconlpetlLlve Z1th confInof ciaHy avaiabfe devicoS- Nor iS the inteTnal SWftchfng grid uSed in thS tUbo ty e an inexpenSive iten to produce. ff ve conSidef SL1ch a co]or tobe in a Z1 diagonal SiZe, there are ap Toxi nafe1y 1100 vertical, evenly Spaced, PaTaHel vifeS that ofo 7op12foXin1a te,ly fenSoned fo -4 b. e3ch ond vhfCh need to be anChofed to a SubStantialfy Strong and heavy internal fraIT1e. The nnofacturing CostS of such a StToctufe afe To1afi ofy high and add to the coSt of tho alfeady Inentioned bolb coSt.

TheTe iS pTeSenfly avaab1e a ffat Cathode Tay tobe Such as the one deScl-ibed in IJ,S. Patont No. Z,795,731. This tLlbe haS beconlo further advanced and inpfovBd by inentionS of GeeTAi1en, and caHed the (}eerLiken colof tube.- ThiS pafticulaT tube haS none of the liInitationS of disodvantageS inherent in those tubeS previoHSly Inen tioed. In afticolar this tube USeS fo itS enve1o e eithef plate of ten1poTed glaSS Which nlay or Inay not be oSed in coo1bination vith a chfoTne-iron alloy. Soch thin tnbeS afe choapeT than thoSe tubes 1fi1iZing fhe bolbS preSently available. Fufther, So^caHed Convefgence dlf -clIltieS are non-eXistont. The ovef-an bean1 focuS charocfofiStics of the Hat tube are SUperioT to fhoSe of the ShadoW nTaSk and ChfoInatTon of the poSt deection focuSing (PDF) color cathode Tay fubeS.

n the (}eer-iken coIor ftlbe, fhTee Sepafate Cathode Tay eleCtron beaInS fe fesenting each of the pin1ary colorS, ed, bloe and green, are n1ade to ifnpinge a taTget SLIfface in the tUbe in accordance With the electrostatic deffection pTincipleS aS deScfibed in fhe IJ.S. Patent No. 2,79S,731. TWo of the beamS in patticUlaT are made to lmpinge the taTget at a pafticular point on one surface and the otheT beam Inade to iTnpinge SiInultaneously the San1 point location on the oppoSite S11TfaCe of the target arSa. The three bean1s each inlpinge a different colored phoSphor so aS to pTodoce in the aggTegate a repreSentaive color inTage in accoTdance ith the signal tranSn1iS Sfon. The type of target StructuTe above described pro dCeS when impinged an effect that is coInInonly teTIned ParaHax ThS is a forIn of viSIlaI distortion When viewing the iInpinging point ffom a poSition other than directly in front oI norInal fo the Sofface. In otheT Wofds, if one lookS at a parficua1 iInpinging point fToII1 the side, he vviH See a coInpoSife of tvo picture foTnS in tvo Se arafe and disfinct pIaneS, So that UnleSS the vievver iS Sitting directly in front of the pict11re and fairly Well back, the fnherent ParaHax in the tvvo-planer color proseT1fafion will appeaf aS coloI IniS-TegistTy. Accord ingly, aS the vieWing angle increaSes fom the norIna1, the Color niSfegiStfy WiH appear to beconle gfeater- ThiS condition /il1 be InoSt Severe v/hen vieWing InonochroTne of bIack and vhite preSenfations. Undef these condi tionS, Sn1aH ap arent IniSregStTieS vhich would be nndetecfed in o color pfesenfation K oLlld pIanly Stand oot aS Color fTinging.

znother lifntation as reIateS to this particular target sflT1ctore iS an onion-Skin effect- This effect can be beS denlonSffated by plaCing a thin tTanS1Ucent Sheet of papeT such aS onion-Skin in intiInate contact with a phofogra h of Some pTintod copy. The vieef wnl have little troUbIe Wi eithef Seeing or Teading the copy thfoHgh the onion-Skin. AS Soon aS contact iS destfoyeo, hoWever n1inofely, resolntion iS deStroyod. As the diStance between the copy and the onionSkin iS incfeaSed, any idenfiffoation of a copy becoIneS an iIn )oSSibility.

TranSfofring tflis principle fo the phoSphor Scfeen taTget of tfle (2reor-Aiken tube, it can Teadily be Seen fhat both sideS are, in eoct, diffI1Sion SUTfaceS soch as onionskin )aper, and thiS iS de to the light-Scattering propertieS of the phoSphor particleS axed to both planes of the glosS SubStTate v/hich actS aS the vievving SIlfface. Tho degree of loSS in eSolntion and also in color SatUration WiH depend on the particle sizes of he phoSphors aS WeH aS on fhe tf1ickoeSS of the viowing ScTeen, i,e. the diStance botvvoen both phoSphof Pfanes. Sinoe the distance v/in alwayS bo nife in SUch a Str1ctllTe, thiS eect can neveT be coInpfetely of Satisfactofily elininated.

It is theTefore one of the pTincipal objects of the invention to produce an iolproved type cathodeTay tUbe.

Znother object of the invention iS to provide a Hat type cathode-Tay tube Vvhioh elininates onion-skin and ParaHaX effects.

Another obect of fb invention is fo produce a cathode Tay tHbe Whch iS mofe eCient, brighter, higher in Tesolution, and iS fnofe econoo1ical to nanofacture and operate, and n1aintain.

ZnoheT obect of the invenfion iS to provide an in pToved typo nefaiZed fargot SUTface WhiCh can be readily and SiE1 ly foffned of Inolded and poSitioned vvithin the Said Hat Cafhodefay tobe With no Shnkage of breakage gonefany encounfofed vvifh gfaSS taTget Strl1ctureS.

znother object of the invention iS to rovide a cathode Tay tube having no denection yokeS and cifcUitfy therefof and no convefgence yokes and CifCIlffy thefefof and getting the Same pictufe effecfs aS though Such yokeS Wofe pfeSent and functoning A Stin fufthef object of the invention iS to pfovide a cathode-fay tubo fequifing no specialiZod glaSS bulbS of SuffaceS necesSafy to confofn1 fo any of the tafget Suf faceS of electfodoS vVithfn the Standafd typeS of tubeS.

And Stiu anothef object of the invention iS to pfovide in a cathode-fay tube having thfee electfon guns in a single plane to pfoduce colof and nTonochfonle in1agoS a tafget Stfuctllfe vvhich iS ifnpinged on only one S11fface and capabe of being vieWed ffom both Sides of te Said tafget stfuctufe, tWo of the Said gunS being difectod to- WafdS each othef.

othef obiectS and advantages WiH beCoffle ap afent ffofn a feading of the SpecicationS and a Study of the accompanying dfavvingS and vVhefein= FIGURES 1zz and lZ) show a sinl lified ictOTial Te feSentation of the Hat colof tubo accofding to the inven tfon as eInbodied hefein.

FIGURE Z pfiof aft, ShovvS fof infofInativo pufpoSeS a tafget sufface and the Inannef in vvhich the electfon beamS impinge the said Sufface in a GeefAiken ty e colof tube.

FIGUREs 3o and 3Z) show fof infofmatVe pufpoSeS thfeo beaInS in a single plane and hovV they in )inge the tafget S11fface in anothef plane accofding fo the invention.

FIGURES 4o, 4 and 4C Show a tafget Sufface and a colof phoSphof patfefn conngufation thofeon and the in1- pinging beamS accofding to the invention.

FIGURES o, SZ) and Sc Show the tafget stfuctufe of FIGURES 4rZ 4 4c, and an electfon InaSk thefef()f fof ofienting and difecfing the electfon beam felafive to the tafget suffaco so aS to peffflit the beafnS f ff1pinge the pfopef phosphofS accofding to the invention.

FIGURE 6 ShoWs the eleCtfon maSk aSSembly Sub Stantially fflagnified in paft accofding to the invention.

FIGURE 7 showS the constfuction of the hofizontal deHection plateS and the Inannef in Which the boam is difecfed to tfavel in a path afaHel to the tafget Scfeen befofe being again vefticany denecfed to I11tinlately in1 pinge on the colof Scfeen tafgot.

FIGURES 8, 8o, and 8o Show ScheInaticaHy the hofiZontal deection platos and the Inanner in /ich the bean1S afo fnade to undefgo theif tfansition ffofn one di fection to anothef of fight angleS thefeto in accofdance vith deection pofentia1 app1ied to the doecting olectfodes.

Now fefeffing to the dfavvingS and pafticnlafly to FI} URES 1 and 1f) thefe iS Shovvn Schefnaticany thefein a Hat colof tube in which tho colof beamS afe an Sub Stanfiany in a single plane, In pafticulaf thofo iS Shown a colof tube vhich opefateS on the doHebtion pfincipleS as taught in Patonf 1`Io. 2,795 731 and con1pfiSes a colof tube 1 having a tafget Stfuctufe z upon vhich thefe is disposed a phoS hof paftofn of afea 3 Tafget ffefnbef Z nlay be cofnposed of gfaSS of Sone othef sifnilaf tfanS pafent membof if the pictufe is to be vieWed ffom the ffont Sufface II0wevef tafget nenbef Z fffay also be compoSed of a metal Such as aluminum if the pictufo is to be vievved ffom the back. In the lattef caSe the veftical deHection stfipes of plates Zo afo of a tfanspafent and conductive Inatefial such aS Stannous oXide vVhich is de poSited on the back glass plate of the thin tube. Adiacent fo tho tafget afea thefe iS affanged a plufaHty of olec tfon gunS 5, o, and 7; two of the gunS and o being at the lowof poftion of the tafget Sffuctufo and affanged to have theif feSpective beaIns ffavefSe a path pafaHel to tho baSe of tho Said tafgot and in line wifh eaCh othof, and the thifd elecffon gun being at the top of the tafget stfuctufe and having a beafn enfanating thefeffon1 tfaveling a path pafanel fo the uppef poftion of the tafget stfuctflfe. The electfon guns S and o iniect along the bottom of the tubo elecfon beamS 8 and 9 each of Which tafget.

paSS ovef a fow of hofiZontal deHection plateS 10. Each of the feSpectivo hofizonfal platos afe attaChed to a delay line 11 for feceiving hofiZontal deffection voltageS and afe each at a fixed volfage suifable fof pfoducing the neceSSafy eloctfon fieldS- vVhen the poteftia1 of one of n1ofe of theSe hofizontal plates 10 iS lowefed below the nofmal opefating voltage of the e1ectfodes in the pafticu laf afea, the hofizontal tfaveling beam WiH be deHected pefpendiculaf to itS ofiginal path in an Upwafd difection. subSequent to thiS deflectfon, the beaIn then paSSeS thfough a tfansition fegon defned by cyHndfical lens elefnents 1Z, the lenSeS oontfoning the vvidth and Shape and difeCtion pefpendicUlaf to the plane of the tube aS it iS tfanSfoffed ffofn the ov voltage hofiZontal doHection fegion to tho high voltage Tegion behind the phos phof, ()nce the beafnS feach tho fegion behind the phoS- phof, it is fedifected by a Set of veftical denecfion plates 14 nofn1aHy opefating at the SaIne voltage aS the phoS phof sCfeen. TheSe plateS in pafticnlaf fn hofiZontaHy and afe fufthef Stacked one above the othef on the back vVall of the tI1be. IIefe again, When one of ITofe of the veffical deHection plates iS feduced in volfage, the beafn iS again deHected, bflt thfS tinle at fight anglos to the ini tial bend and into tho phoSphof afoa of Sufface of the Tho fnannef in Which the beaxns ifnpac fhe target afea iS explained by the patent pfovioESly n1entioned and S SUbstanfiany acconlpliShed by Sequentiany vafying the voltage of the vafiouS deflection plates. fIefe again, Since an deHectfon iS electfo-Static, felatively little powef is fequifed fo peffoffn tho deHocting functions, although high voltageS afe involved.

By vvay of deviafion and to bettef nndefStand the wofkingS of applicant,s invention and its ifnpfovement ovef the rior art, there is Shown in FIGURE 2 a t ical iHUStration of the tafgef SUffaCe in the GeefAiken tube pfoviously fefeffed to. In pafticulaf it vvi11 be noted that the tafget SLlffaCo 20 haS depoSited thefoon fed and blue hoS hof on its Seffated of Savvtooth Sido and gfeen phoSphof on the OppoSito I)1ane SUfface Side. The electfon gunS 21, ZZ, and 23 afe in two sepafate planes, the blue and fed guns in ono plane on tho side of the tafget in vvhich the blue and fod phosohofs afe deposited and the othef gun in a plano on tho Side of tho tafget Whefo the gfeen phosphof iS de osited. In the afran en1ent aS Sh()wn the araHax and and onionSkin effecf, aS PfeviouSly Sfated, beCo1]]e quite a pafent.

To ovefcofne theSe Unxvanted and obiectonable effecfS, a tafget sufface Such as that shown fn FIGURES 3o and 3o iS pfopoSod. In pafticulaf it may be obSefved that the thfee efectfon gunS Zs, Zo, 27, fepfeSenting feSpectively the blue, gfeen and fed beafns, afe an in a single plano in ffont of the tafget SuffaCe 28 So that no appafent pafaHaX and/of onion-Skin effect is noticed of eVfdenced. The doection appafatUS fof pfoducing the necosSafy de- Hection is not shown hefe but is con1pafable to the tech niques deSCfibed in the Aiken Patent No. 2,79S,731. It Can be appfeciated ffofn obSefving the tafget Z8, and the n1annef of ifnpingenent thefeof by the thfee coIof beafnS, that the tafget afea, and thefefofe the inlage diSplayod thefeon, Inay be vievved ffom both sideS of the tafget Stfuctufe vvithoHf getting the obiectionable offoctS )fe viously mentioned.

To obtain the neceSSafy thfee phoSphofs, fod, gfoon and blne on a sin !e SUrface 28 of FIGURES 3, 3 a novel affangefnent of the hoS hofs as Shown in FIG, IJRES 4o 4Z) and 4C iS pfopoSed aS ono e111bodimenf of tho invention hefein. The Said figufeS Shov/ a tHfgct Stfuc ture 30 where FIGURE 4 is the lan view, FIGURE 4` tffe Side of end viev, and FIGURE 4C iS the efeVatiOnoI Vie/. Tho Single plane ffange1nent of tho thfee boan1S fof in1pinging the tafget SUffaCe iS aS Shown befofe with Tes ect to FGURE 3. In aTticular, the tar et Structf1fo 30 iS SubSfantiany EL fectangllfaf fibbed Shaped glaSSeouS of n1etallic felatively thin SUffaCo ff1effbef upon Which afe depoSited the fed, gfoen and bfuo phoS hofs aectod by tho SiZe of the irnage Scfeen, MoTeoveT, the aTrangenlentS preSented aTe not TeStricted in size by beam denection angle lifnitationS inheTent in cathode-ray tubeS of conventional design. Hence beaIn scanning is here prosented which does not Teqnire SnbStantiany increaSed accelerating voltages, increaSed denection voltageS no1 incfeaSed depth to acCon1pliSh an incTeaso in iInago screen dinlenSions. vVith the aTrangen1entS shovvn in the Said figIlfeS, vvheTe the red and gTeen bean1 velocity iS 1500 volts, both bean1s vViH be in a neld ffee zone When tTaverS ing thoSe denection plateS -at the SaIne potentia1. IIov ever, When the beaInS enter thoSe aoaS of loweT potential the Said beaInS vvin be deected UpwaTdS accofdingly. The elecffiCal wave thTough tho del ay lineS, aS typically shown in FIGURE 1 vvivll de reSS the deflection late voltageS in a typica1 Scanning typo process so that both the gfeen and rod beaIns viH Start to bend upvvaTdly togother. The beam as shown in FIGURE 7 can be ma-de to bend in a SInooth cuTve depending upon the gTadat ion fTon1 the noTn1a1 1S00 v. to the lovvor potentfal desired. Xgain this dependS upon the deection voltage wave foTIn connguration through the delay lines, Figuros 8o, 8Z), and 8c Shovv how the bending Zone of the bean1S is changed With changes in the hoTiZonta1 deflection plate voltage frofn the normaL lS v to the zero or gTound potentiaL The transition Zone oT lenSeS in vvhich the green and Ted bean1S are fifSt coninTated and then accelerated to higher voltageS Would be above the point theil bending first takes place. Tho donection plateS to vvhich the deHection voltageS aTe appHed are shown aS being channe1 Shaped, but they ITlay alSo be sen1i-cifcular, theTe being no denite prefefence as to conEguTation, Since the effect vvi11 bo the SaIne.

The invention aS diScoSed iS not to be lin1ited to the specific dravving and doScTiption vvith TeSpect thefefo, but there are varioUS changeS and n]odincatfons Which Tnay be Inado, Such aS tho patteTn conngurafion of the co]()I Screen and the maSk for achieving colof purity may bo alterod without detracting fToIn the invention heTein. Another consideration to be given attention to iS that the tube Inay be viowed flom tho back Side, i.el on the side 1at the electTons irnpinge on the screon in Which caSe the light output becoInoS conSiderably gfeater than those color tubos pre ViouS]y n1entioned since the eciency of the phoSphofS aTe approxin1ately three tinles higheT on the Side that the electronS iInpinge than they aTe on the norInal viewing Side.

Having deScribed the invention, What iS claiIned, S:

1. A thin nat colof cathodeTay tube havin a deection syStem for doooting a )furaHty of ooplanaT bean1S each in a direction to causo them to inlpinge a target surface in the tube in a normal direction theTeto at soIne deHnable poSition the Said thin nat tIIbe con1prising a tar get area having disposed thefeon a geon!etric Sefated phosphor patteTn along one Surface thereof to prodUce tfico1ored inlageS upon imoact by fhe Said ooplanar bearns aS fhey traverSe the Said tafget aTea in accordance With the denection SysteIn, and n1eans in proXiInity to the tafget area foT guiding the Said bean1S in a direction to calISe them to iIT1pinge tho Said phoSphor patteTn along one SIlrface of the Said target area at a location not inconsiSfent vZith the signal tranSnlitted and to be I`eproduced.

2. A thin nat colof cathodeTay tubo having a deHec fion sySt en1 fof defl ecfing a p1Urality of Cop1naT oeaInS each in a difection to canSe them fo jInpinge a target Suface in the tube in a noTInal direction thereto at soIne deHnable position, tho said thin nat tube conlpriSing a target area having diSpoSed theTeon a geon1etric seTratod phosphor co1or patteTn along ono Surface thereof to pro duce trico1ored inageS upon iInpact by the Said beanS aS they traverSe tho said taTget area in accofdanCe vvith the deHoction SySten, and Ineans in pfOXin1ity to the target area foT glliding the said bean1s in a diTection to callSe them to inoinge tho said phosphor co1or pattern along one surface of the Sa i(1target aTea at a location not inconsistent vvith the Signa1 tranSnitted and to be re1)Toduced.

3. A thin at coloT cathodefay tube having a denection SyStoln fof deHoofing a )Iura1ity of coplanaT bean1s each in a direction to cauSe them to il11 )inge a target Snrface in the tube in a nornlal diTection theTeto at SOIne denable position, the said thin nat tube conpfiSing a glaSSeous Serfated target area having diSpoSed tfanSverSely thereon a SerieS of Topetitive colofed phosphor Stfipes along one SUTface thereof to produce co1ored in1ageS upon iInpact by tho Said beaIns aS they tfaveTSe the Said target area in accoTdanoe vVith the deection sySten1, and IneanS in proximity to the target area for guiding the Said boamS in a diToction to cauSo them to iInpinge the Said phosphof co1oT Pattefn along one S11Tface of the Said target aTea at a loca tion not inconSiStent With the signa1 tranSII1itted and to be feproduced- 4. In a at color type cathode-ray tube as in clain1 3 and wherein said taTget aroa iS metaL 5. A thin Hat co1or cathoderay tL1be having a denection sySteIT1 fo1 deeCtng a p1Urality of coplanT beamS each in a diTection to CauSe theIn to impinge a target SIrface in the tI1be in a nofmal diTection thefeto at Some dennable position, the said hin nat tube compriSing a glasSeouS seffated tafget aTea having disposed tranSvofSely theroon a Sefies of Tepetitive coloTed phosphor StfipeS along one SUfface thefeof to pToduce colored inageS upon inpact by the said bean1S aS they traverSe the Said target area in accordance vvith the denection SySteIn, and IIleanS including a1 elecfron nask in pToXin1ity to the target area fo1 guiding the said beaInS in a direction to cauSe them to iInpfnge the Said phosphor color stfipeS along ono SuTfaoe of the said target afea at a location not inconSiStent vvith the signa1 tfansInitted and to be Tepfoduoed.

6. A thin fiat colof cathoderay tbe fol TepToducing transInitted )ictI1re signaIS and having a denection sySten1 for doneofing a pluraHty of Coplanar oeaInS eaCh in a direction to caUSe thern to impinge a targot SUrface in the tube in a normal direction thereto at Some denabe poSition, tho Said tube conlpriSing a Serrated tTico1or taTget area having diSpoSed tranSverSey thereon a Series of Spaced Tepetitive Ted colofed and alternate bi-colorod phoSphor StripeS along one Surface thoroof to pToduce colored inageS Upon inpact by the said bean]S as they traverSe the Said taTget afea in accofdonCo with the de ection IneanS, and noanS inclding nonInagnefic per foratod electron InaSks in proXinlify to the target Surfaco fof guiding the Said beaInS in a direction fo cauSe then1 to i1] inge the Said ph0S hor colof Stri )es at a location not inconSiStent with the picture Signal tranSmtted and to be TepTodHCed.

7. In a nat color fube accofding to claiIn o and vvhoro in the said Serfated target aTea iS con1poSed of glasseous InateTialS.

8. In a nat coOT tubo accofding to claiIn 6 and wherein the Said SeTfafed tafget aroa iS conlpoSed of a n1eta11ic InateTiaL 9. A thin Hat colo1 cathode-ray tubo having a denec tion SysteIn fof deHecting a plurality of copLanar oeaInS each in a diTection to caUSe then1 to inpinge a targot Surface in tho tube in a IoTInal diTection theTeto at somo dennable position, the Said t11be conlpriSing a glaSSeouS SerTated target area having diSpoSod tranSvefSely thoToon a Series of Tepetitive co10fed phoSphor stTipeS along one SUTface theTeof conSiSting of alteTnate Ted stripes and alfofnato bicolored blue/groen StTipes in between tho alternate red stfipeS to pTodnce coloTed in]ages upon Sin1UtaneouS impact by the Said beaTns aS they tTaverSe the Said target area in accordance with the TeHection SySten1, and perfofated n1eanS for g11idng the Said beanS in a direction to cauSe them fo iTn )inge tbe Said phosphor color pattern at a location not inconSiStcnt Vith the Signal tfansn1itted and to be Teproduced.

10. A fiat colof tyoe cathodeTay tube for TepToducing pictUTe SignalS coInpriSing a targot StructUre Inounted theTein, the Said StTucture con1poSed of a SoIrated aroa having coloTed hoS hof StfipeS adheTed thefct0 on ono Sufface in a Tepetitive pattern consisting of alternate Ted StTipeS tranSveTSe to the SefrationS and alteTnate stTipeS of bicolofed blue/green stTipeS betWeen the Ted StripeS, electTon beaIn generating n1eanS in pfoxifnate Telation fo the taTget StTuctufe and diSpoSed to tTaflS1T1it electTon beaInS in a difection paranel to the hoTizontal edge of the taTget afea and pfoxiInate theTeto, beaIn de nection neanS adacent to the taTget Stfllct[1Te along the hoTizontal and veItical poffionS theTeof and pafane1 theTefo, and IneanS including defiection voItage soofces coonected to the Said bean1 deHection n1eanS f()f difect ing the Said beaIns in a diTectioI1to cauSe theIn to inlpiI1ge the hosphof pattern of the taTget StTuctuTe 11. A at colo1 type cathode-Tay tube fof Tepfoducing pictufe signals CoInpTiSing a taTget structuTe Inounted therein and con1poSed of a tfanSpaTent serfated aTea having coloTed phoSphor StTipes adhofed theTeto on one Surface in a Tepetitive pattern conSiSting of altefflate Ted StTipeS tTansveTse to the SeTTationS and alteTnate stTi eS of bico1ofed blue/greon stTipeS betvveen the Ted stTipes, electTon beaII1 geneTating oleanS in proxinate Telation to the taTget sffuctLlre and disposed to tTanSInit electTon bean1S in a difection pafaHel to the horiZontal edge of the taTget aTea and proxiInate thereto, bean1 denection IneanS adiacent to the taTget StfuctuTe along the hofi- Zontal and veftical poftion thefeof and paTane1 theTeto, and IneanS including deection voltage Sonfces connected to the Said beam deection meanS for directing the said bea1S in a difection to cauSe thom to in1pinge the phoS phof patteTn of the tafget StTuctuTe according to the pic ture signals tranST1itted.

12. A at c()lof type cathode-fay tl1be accoIding to clain1 11 and Whefein the bean1 genefating IneanS includes electfon gonS dispoSed in pfoxinlate Telation to the hoTizontal extreIT1ify of the target stfucf11re, at leaSt a piT of Said electTon gUns being axially aligned So as to have theiT Tespective beaInS on a coHision couTSe.

13. A fat colo1 type cafhode-ray tube accoTding to claiTI1 11 and vvherein the beam denection Ineans inclHdes delay lineS fo TeceiVing the deection voltage soUTces.

14. A at colo1 cathode-Tay tube fo1 fepToducing pic tITe SignalS coInpriSing a tri-colof tafget stTIIctuTe n1ount ed therein and composed of a metaHZed Seffated afea With coloTed phoSphof StripeS adhered theTeto on one sufface in a re etitive pattern consisffng of alteTnate fed StripeS tranSveTSe to the SerrationS and alteTnate Stfipes of bi-colofed blne/gfeen Stripes between the Ted StripeS, electron beaIn genefating Ineans in pT())(iIn-ate Telation to the taTget structHTe and diSposed to tTansn1it electron beaInS in a diTection paTalle1 to the hofizontal eXtTeInities of the ta Tget area and proxiIIlafe thereto, beam deection n1eanS adiacent to the taTget stfuctoTe along the hoTi zontal and veftical poftions thereof and paraHel thereto,

IneanS including defiection voltage soofceS connected fo the Said beaIn denection oeanS fof cauSing the said beaIIIS to Scan the phosphof patteTn of the target StTuctufe iI1 a, horizontal and veftical difection and peTfoTated electTon InaSk oleans in pfoxiInity to the bean1 defiection IneanS for directing the colofed bean1s to their corfeSponding colofed phospho1 on the target area.

15. A Hat coloI' cathode-Tay tobe fol repfodocing pictuTe signals conlpTiSing a taTget stTucture Inonnted there in and compoSed of a SerTated n1etalized area with colofed phosphol tTipeS adheTed thereto on one Surface i1 a Tepefitive paftoTn conSisting of altefoate StfipeS of one colofed phosphof fransvefSe to the SeTfationS and alteT nate StripeS of bi-coloTed phosphoT Stripes betWeen the Stfipes of the ()ne colofed phosphoT, electTon beaIn gen eTating IneanSfn proxiInate felation to the target St1LIctuTe and diSpoSed to tfanSmit e1ect1 on beamS in a di Tection paraHel to the horiZontal edge of the target aTea and proximato thefeto, bean1 defiection meanS adiacent to the tafget StructUTe along the horizontal and veTtical poftion thefeof and paTaHel theTeto, and Ineans incIUding deHection voltage SoUrces connected to the Said bean1 de nection meanS foT directing the Said beaIns in a diTection to cause them to iInpinge the phosphof patteTn of the tafget StTucture.

16. A thin flat color cathodeTay tube having a defiection SySfen1 for denecting a plurality of co-planef beaInS each in a diTection to cause theIn to iInpinge a tafget Sufface in the t11be in a nofInal difection thefeto at son1e dennable position, the said thin fiat tube com pTiSing a glaSSeous sorrated target aTea haviI1g disposed tranSveTsely thefeon a Series of Tepetitive coloTed phoS- phof StfipeS along one Sufface thereof to pToduce colored iInageS u on iIn act by the Said bean1s aS they tTaveTSe the Said target area in accoTdance With the deection SySteIn, and electfon InaSk IneanS coInpoSed of a channel laddel type Inember having a pluTaHty ()f spacial transveTSe baTS eaoh having a Width coInpaTable fo the phosphor St1ipeS, the said mask being in proximity to the taTget aTea foI guiding the Said beams in a difection to canse theIn to inopinge the phosphoT Stripes along one Sufface of the target aTea at a looation I1ot inconsistent vvith the signal tTansInitted and to be fepTodoced.

lefefenceS cffed by the ExaIniner UNITED STATES PATENTS 2,S44 69o 3/19S1 Koch et a1. 31370 2,795,731 6/19S7 Aiken 31S 2,9SS,Z31 10/1960 Aiken 315 

1. A THIN FLAT COLOR CATHODE-RAY TUBE HAVING A DEFLECTION SYSTEM FOR DEFLECTING A PLURALITY OF COPLANAR BEAMS EACH IN A DIRECTION TO CAUSE THEM TO IMPINGE A TARGET SURFACE IN THE TUBE IN A NORMAL DIRECTION THEREOT AT SOME DEFINABLE POSITION, THE SAID THIN FLAT TUBE COMPRISING A TARGET AREA HAVING DISPOSED THEREON A GEOMETRIC SERRATED PHOSPHOR PATTERN ALONG ONE SURFACE THEREOF TO PRODUCE TRI-COLORED IMAGES UPON IMPACT BY THE SAID COPLANAR BEAMS AS THEY TRAVERSE THE SAID TARGET AREA IN ACCORDANCE WITH THE DEFLECTION SYSTEM, AND MEANS IN PROXIMITY TO THE TARGET AREA FOR GUIDING THE SAID BEAMS IN A DIRECTION TO CAUSE THEM TO IMPINGE THE SAID PHOSPHOR PATTERN ALONG ONE SURFACE OF THE SAID TARGET AREA AT A LOCATION NOT INCONSISTENT WITH THE SIGNAL TRANSMITTED AND TO BE REPRODUCED. 